The summing amplifier can be used as a digitally controlled volume control using the circuit in the following figure. The individual bits of the 4-hit binary input bit b_1 b_2 b_3 b_4 are used to control the position of the switches with the resistor connected to 0V if b_i = 0 and connected to the input signal V_s if b_i = 1. Suppose V_s = sin4000 pi t V. What is the output voltage V_0 with the data input b_1 b_2 b_3 b_4 = 0110? What is the output voltage V_0 with the data input b_1 b_2 b_3 b_4 = 1011?

25 1 - The summing amplifier can be used as a digitally controlled volume control using the circuit in the following figure. The individual bits of the 4-hit binary input bit b_1 b_2 b_3 b_4 are used to control the position of the switches with the resistor connected to 0V if b_i = 0 and connected to the input signal V_s if b_i = 1. Suppose V_s = sin4000 pi t V. What is the output voltage V_0 with the data input b_1 b_2 b_3 b_4 = 0110? What is the output voltage V_0 with the data input b_1 b_2 b_3 b_4 = 1011?

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images - The summing amplifier can be used as a digitally controlled volume control using the circuit in the following figure. The individual bits of the 4-hit binary input bit b_1 b_2 b_3 b_4 are used to control the position of the switches with the resistor connected to 0V if b_i = 0 and connected to the input signal V_s if b_i = 1. Suppose V_s = sin4000 pi t V. What is the output voltage V_0 with the data input b_1 b_2 b_3 b_4 = 0110? What is the output voltage V_0 with the data input b_1 b_2 b_3 b_4 = 1011?

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